How To Fix CNV_CMIS_M014 - An identical mapping entry already exists; remove or change this entry

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_M - Message class for CMIS Migration

• Message number: 014

• Message text: An identical mapping entry already exists; remove or change this entry

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_M014 - An identical mapping entry already exists; remove or change this entry ?

  The SAP error message CNV_CMIS_M014 indicates that there is a duplicate mapping entry in the system. This typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or the SAP Data Migration Cockpit. The error suggests that the system has detected an identical mapping entry that already exists, which can lead to conflicts or inconsistencies in the data being processed.
  Cause:
  
  Duplicate Entries: The most common cause is that the mapping table or configuration has duplicate entries for the same source and target fields.
  Incorrect Configuration: There may be an error in the configuration of the mapping settings, leading to unintentional duplicates.
  Data Import Issues: If data is being imported from an external source, it may contain duplicates that were not filtered out before the import.
  
  Solution:
  
  Identify Duplicates: Review the mapping entries in the relevant mapping table or configuration settings. Look for identical entries that may have been created inadvertently.
  Remove or Modify Duplicates: 
  
  If you find duplicate entries, you can either remove one of them or modify the entries to ensure they are unique.
  Ensure that the source and target fields are correctly defined and that there are no overlaps.
  
  
  Check Data Source: If the duplicates are coming from an external data source, ensure that the data is cleaned and deduplicated before importing it into SAP.
  Re-run the Process: After making the necessary changes, re-run the data migration or conversion process to see if the error persists.
  
  Related Information:
  
  Transaction Codes: You may need to use specific transaction codes related to data migration or conversion, such as LTMC (for Migration Cockpit) or LTMOM (for Migration Object Modeler).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to the official SAP documentation for the data migration tools you are using, as they often provide guidelines on how to handle mapping entries and resolve conflicts.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP data migration.